Figure 8.

Control of chromatophore expression along the body axis has no topographic correspondence in the optic lobe. Stimulation of various optic lobe regions evoked different ipsilateral responses. A, Anterior stimulation (first 1/3 of the optic lobe). B, Middle stimulation (middle 1/3 of the optic lobe). C, Posterior stimulation (last 1/3 of the optic lobe). Regardless the stimulation site, chromatophore expression on the mantle showed the largest increase. Ipsi-mantle, Ipsilateral mantle; Ipsi-head, ipsilateral head; Ipsi-arms, ipsilateral arms. Error bars indicate SEM. *p < 0.05; **p < 0.01.